a-a a-b a-c aaa aab aac aae aak aap aaw ab- aba abb abc abe abk abp abw ac- aca acb acc ace ack acp acw aea aeb aec aee aek aep aew aka akb akc ake akk akp akw ap- apa apb apc ape apk app apw aw- awa awb awc awe awk awp aww b-p baa bab bac bae bak bap baw bba bbb bbc bbe bbk bbp bbw bca bcb bcc bce bck bcp be- bea beb bec bee bek bep bew bka bkb bkc bke bkk bkp bkw bpa bpb bpc bpe bpp bpw bwa bwb bwc bwk bwp c-- caa cab cac cae cak cap caw cba cbb cbc cbe cbk cbp cbw cca ccb ccc cce cck ccp ccw ce- cea ceb cec cee cek cep cew cka ckb ckc ckw cpa cpb cpc cpe cpk cpp cpw cw- cwa cwb cwc cwe cwk cwp eaa eab eac eae eak eap eaw eba ebb ebc ebe ebk ebp ebw ec- eca ecb ecc ece eck ecw eea eeb eec eee eek eep eew eka ekb ekc eke ekp ep- epa epb epc epe epp epw ewa ewb ewc ewe ewk ewp eww ka- kaa kab kac kae kak kap kaw kba kbb kbc kbe kbk kbp kbw kca kcb kcc kce kck kcp ke- kea keb kec kee kek kep kew kkb kkc kke kkk kkp kpa kpc kpe kpk kpp kpw kw- kwa kwc kwk kwp kww p-p paa pab pac pae pak pap paw pba pbb pbc pbe pbk pbp pbw pca pcb pcc pce pck pcp pcw pea peb pec pee pek pep pew pka pkb pkc pke pkp ppa ppb ppc ppe ppk ppp ppw pwa pwb pwc pwe pwp waa wab wac wae wak wap waw wba wbb wbc wbe wbw wca wcb wcc wce wck wcp wcw wea web wec wee wek wep wew wka wkb wkc wke wkp wkw wpa wpb wpc wpe wpk wpp wwa wwc wwe wwp www